Lamp



FIG. 1 is a perspective view of a lamp, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an operational perspective view thereof, wherein the brokenlines are shown for illustrative purposes only and form no part of theclaimed design.

The ornamental design for a lamp, as shown and described.